DOI: 10.1063/1.362538. Magnetic flux penetration process in two-dimensional superconductor covered with ferromagnetic particle array

Magnetic flux penetration process in two-dimensional superconductor covered with ferromagnetic particle array

10.1063/1.362538

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The magnetostatic effect of a ferromagnetic particle array on an underlying two-dimensional superconducting Nb thin film was investigated in terms of flux penetration processes by means of high sensitive magnetometry. For bare Nb film, a large drop in magnetization due to a flux rearrangement appeared in the low field region below 2.5 mT. However, once magnetic particles were fabricated on the surface of the Nb film, the drop was not observed. In this configuration, the ferromagnetic particles seem to behave as flux guides for the external magnetic field, whereby the flux distribution inside the superconductor is well regulated. Furthermore, a periodical oscillation was observed in the hysteresis loops. This behavior is associated with a flux quantization in the regions where the superconductivity is suppressed by the stray field of the ferromagnetic particles. The local flux density distribution around the ferromagnetic particles was evaluated by using the London equation, and the magnetization curve of the Nb film with periodically modulated superconducting order parameter was calculated.

Bibliography

Nozaki, Y., Otani, Y., Runge, K., Miyajima, H., Pannetier, B., NoziÃ¨res, J. P., & Fillion, G. (1996). Magnetic flux penetration process in two-dimensional superconductor covered with ferromagnetic particle array. Journal of Applied Physics, 79(11), 8571â8577.

Authors 7

Yukio Nozaki (first)
Yoshichika Otani (additional)
Katharina Runge (additional)
Hideki Miyajima (additional)
Bernard Pannetier (additional)
Jean Pierre Nozières (additional)
Gerard Fillion (additional)

References 8 Referenced 36

10.1016/0304-8853(93)90705-7 / J. Magn. Magn. Mater. (1993)
{'key': '2024020217103463200_r2'}
{'key': '2024020217103463200_r3', 'first-page': '389', 'volume': '3', 'year': '1993', 'journal-title': 'J. Phys. I'} / J. Phys. I (1993)
10.1016/0921-4534(92)90617-L / Physica C (1992)
{'key': '2024020217103463200_r5', 'first-page': '269', 'volume': '179', 'year': '1991', 'journal-title': 'Physica C'} / Physica C (1991)
10.1002/pssb.2221700220 / Phys. Status Solidi B (1992)
{'key': '2024020217103463200_r7', 'first-page': '2945', 'volume': '235–240', 'year': '1994', 'journal-title': 'Physica C'} / Physica C (1994)
{'key': '2024020217103463200_r8'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:27 a.m.)
Deposited	1 year, 7 months ago (Feb. 2, 2024, 1:19 p.m.)
Indexed	2 months ago (July 1, 2025, 9:06 a.m.)
Issued	29 years, 3 months ago (June 1, 1996)
Published	29 years, 3 months ago (June 1, 1996)
Published Print	29 years, 3 months ago (June 1, 1996)

Funders 0

None

BibTeX

@article{Nozaki_1996, title={Magnetic flux penetration process in two-dimensional superconductor covered with ferromagnetic particle array}, volume={79}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.362538}, DOI={10.1063/1.362538}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Nozaki, Yukio and Otani, Yoshichika and Runge, Katharina and Miyajima, Hideki and Pannetier, Bernard and Nozières, Jean Pierre and Fillion, Gerard}, year={1996}, month=jun, pages={8571–8577} }

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